Yeah I just read that; those are actually not bad amps but if you stand a chance of getting your Kickback 10 back it's hardly worth it to buy a used Kickback 12.
Beyond the watts I think the new ones weigh about 20 pounds less, which was a goal of your so yes by all means cancel the order and keep looking.
If it makes you feel better some guy on Reverb bought one of these Hartke KB12 combos used from Sam Ash and they sent him the old one even though it was advertised as the new version.
Not sure it was outright fraud, more likely the kind of people who work at these places got it wrong in the listing and picture; the ability to fog a mirror seems to be the only requirement to working there LOL
Analogeezer
There's a chance I will get my KB 10 and BG250 back ... but as I said it may not be until the probate process is completed and that could take months more and I sort of need at least one amp now. And if they want to play "hard ball" I would be ill pressed to try to prove I am the owner of the amps. I never recorded the serial numbers as I did for all of my other gear and I may or may not still have the receipts.
Regarding that Sam Ash deal I would consider it a bum deal and I'd demand my money back with no cost for return shipping; the amp received is not the amp described.
I have a question about the power output of the GK MB-115 and the MB-115 ii. The manuals say that the MB-115 has a power output of 200 watts at 4 ohms while the MB-115 ii is rated at 140 watts at 8 ohms and 200 watts at 4 ohms. However neither amp has a speaker out plug so how does the MB-115 ii have a 140-watts at 8 ohm rating?
In other words, what are the power output for the two amps without having to add another cab?
I ask this because one member here pointed out the Ampeg RB-115 is really only 100 watts with the onboard speaker so I'd need to add another cab to draw the full 200 watts.